.reviseBook, .deleteBook {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
}

.reviseBook:hover, .deleteBook:hover {
    background-color: #45a049;
}

.reviseBook:disabled, .deleteBook:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.reviseBook.disabled:hover, .deleteBook.disabled:hover {
    background-color: #ccc;
}
